On the symmetric division deg index of graph

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August undefined, 2024

WebThe symmetric Also let ? = d1 ? d2 ?... ? dn = ? > 0, di = d(i), be a sequence of its vertex degrees with maximum degree ? and minimum degree ?. (PDF) Bounds for symmetric division deg index of graphs Kinkar Das - Academia.edu WebA graph is d-regular if all its vertices have degree d; a graph is (a;b)-regular if its vertices have degree either a or b. (Beware: no bipartiteness is required in our deﬁnition of (a;b)-regular graph. For all graph theoretical terms the reader is referred to reference [15]). The symmetric division deg index of G, deﬁned by SDD(G) = X (i;j ...

On symmetric division deg index of unicyclic graphs and bicyclic …

Web11 de out. de 2024 · The symmetric division deg (SDD) index is among the 148 discrete Adriatic indices that were developed about a decade ago. Motivated by the success of … Weband then we explore new bounds for sdd-index. In continuing, the inverse symmetric division deg index is deﬁned and new results concerning these two graph indices are stablished. Finally, some bounds for both indices are presented. Keywords Automorphism group · Edge-orbit · Symmetric division deg index · Graph invariants small engine mechanic training

GRAPH OPERATIONS ON THE SYMMETRIC DIVISION DEG INDEX OF GRAPHS

Web1 de dez. de 2024 · In 2024, Furtula et al. proved that the symmetric division deg index is a viable and applicable topological index in QSPR/QSAR investigations. In this article, … Web1 de set. de 2024 · The Symmetric division deg (SDD) index is a well-established valuable index in the analysis of quantitative structure-property and structure-activity relationships for molecular graphs. In this paper, we study the range of SDD-index for special classes of trees and unicyclic graphs. We present the ﬁrst four lower bounds for … Web15 de mai. de 2024 · In this work, by a graph, we mean a simple, finite and connected one. The symmetric division deg index a graph invariant based on degree of vertices and it … songer thekla

New results on symmetric division deg index SpringerLink

On the Symmetric Division Deg Index of Molecular Graphs

Web27 de ago. de 2024 · The symmetric division deg (SDD) index of a simple graph G is defined as SDD(G) = uv∈E(G) (du dv + dv du), where E(G) is the edge set of G and du denotes … Web24 de out. de 2024 · Alexander V. Upper and lower bounds of symmetric division deg index. Iran J Math Chem.. 2014;52: 91 – 98. [Google Scholar] Gupta CK, Lokesha V, Shwetha BS, et al. Graph operations on the symmetric division deg index of graphs. Palestine J Math. 2024;6(1): 280 – 286. [Google Scholar] Azari M, Iranmanesh A. … songer septic sand \u0026 gravel emory txWebthe ﬁrst geometric-arithmetic index GA, atom-bond-connectivity index ABC, symmetric division deg index SDD, chromatic number χ and so on. In Section 4, we obtain some suﬃcient conditions of GA(G) > GA(G − e) or AG(G) > AG(G − e) for an edge e of a graph G. In particular, we give a reﬁnement of songe people

"Web17 de jun. de 2024 · Therefore, we present the maximum symmetric division deg indices of unicyclic graphs and bicyclic graphs with given matching number. Furthermore, we … " - On the symmetric division deg index of graph

On the symmetric division deg index of graph

[PDF] On the Maximum Symmetric Division Deg Index of …

Web7 de jul. de 2024 · Abstract: For a graph $G$ with vertex set $V_{G}$ and edge set $E_{G}$, the symmetric division deg index is defined as $SDD(G)=\sum\limits_{uv\in … WebWe explore here some mathematical properties and present explicit formulas for this new index under several graph operations. 2010 Mathematics Subject Classifications. 05C12, 05A15, 05A20, 05C05. . Let G = (V, E) be a graph. ... The Symmetric division deg index of a connected graphG, is de ned as SDD(G) = ∑ uv∈E(G) ...

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WebIn this article, we characterize the SDD index for the class of all 𝑛- vertex tricyclic and tetra-cyclic graphs. Index Terms— Symmetric division deg index, cyclomatic number, … WebGraph Operations on the symmetric division deg index of graphs 281 Denition: 2 The Symmetric division deg index of a connected graph G, is dened as SDD(G) = ∑ …

Web25 de fev. de 2024 · Recently, a novel topological invariant based on degrees of end-vertices of an edge in a graph was put forward. It was named Sombor index. The definition of the Sombor invariant suggests another, rather a geometric view onto graph edges. Here, the mathematical relations between the Sombor index and some other well-known … Web10 de ago. de 2024 · Symmetric division degree index and inverse sum index of transformation graph. G Mohanappriya1 and D Vijayalakshmi1. Published under licence by IOP Publishing Ltd. Journal of Physics: Conference Series , Volume 1139 , International Conference on Applied and Computational Mathematics 10 August 2024, Tamilnadu, …

WebOn the Maximum Symmetric Division Deg Index of k-Cyclic Graphs Abeer M. Albalahi and Akbar Ali Department of Mathematics, Faculty of Science, University of Ha’il, Ha’il, Saudi Arabia Correspondence should be addressed to Akbar Ali; [email protected] Received 19 May 2024; Accepted 26 July 2024; Published 27 August 2024 Webthe symmetric division deg index, is included in the list of 148 discrete Adriatic indices and is a very good predictor of total surface area of polychlorobiphenyls (PCB). The symmetric division deg indexof a graph . G. is defined by ( ) { } { } { } ~ { } min , max ,. max , min , ij ij ij ij ij. dd dd R RG dd dd = = + ∑. The concept of the ...

Web6 de set. de 2024 · Abstract. The symmetric division deg (SDD) index is among the 148 discrete Adriatic indices that were developed about a decade ago. Motivated by the …

Web28 de jul. de 2024 · One of those numerical descriptors, the symmetric division deg index, is included in the list of 148 discrete Adriatic indices and is a very good predictor of total … small engine mechanics traininghttp://pubs.sciepub.com/tjant/5/6/2/tjant-5-6-2.pdf small engine mobile repair near meWeb22 de abr. de 2009 · DS18B20 is a kind of 1-wire digital temperature sensor, with a wide measuring range from -55 °C to +125 °C, 9 - 12 bit digital temperature readout, and accuracy of ±0.5 °C. In the design, 12 bit resolution is chosen, and 3.3 V power supply is applied. Data acquision (DQ) pin is connected to pin P1.6 of the C8051F360. small engine mower repair near meWeb1 de dez. de 2024 · In addition, we get a lower bound on symmetric division deg index for all molecular (n, m, p)-graphs (n-order molecular graphs with m ≥ n edges and p > 0 pendant vertices). Introduction In mathematical chemistry, topological indices are numerical quantities associated with molecular chemical structure, and they play crucial roles in … songers cabins houghton lake miWeb2 de jun. de 2024 · Title: Analytical and computational properties of the variable symmetric division deg index Authors: R. Aguilar-Sanchez , J. A. Mendez-Bermudez , Jose M. Rodriguez , Jose M. Sigarreta Download PDF small engine no start troubleshootingWeb27 de ago. de 2024 · The symmetric division deg index (or simply sdd -index) was proposed by Vukičević et al. as a remarkable predictor of total surface area of polychlorobiphenyls. It is one of discrete Adriatic indices … small engine mechanic school online songer septic emory tx